.The manager entered the office and was happy to learn that four-fifths of the tickets . A

发布时间：2020-08-16 07:18:12


.The manager entered the office and was happy to learn that four-fifths of the tickets     .
A. was booked
B. had been booked
C. were booked
D. have been booked

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A. was booked
(答案→)B. had been booked
C. were booked
D. have been booked
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